Improvement in combined grain-drills and corn-cultivators



DAVID B. PLA'IT, 0F JEFFERSONVILLEINDIANA.

Letters Patent No. 111,675, dated February 7, 1871.

IMPROVEMENT IN COMBINEDGRAlN-DRILLS AND. CORN-CULTWTORS.

The Schedule referred to in these Letters Patent and making pari: of thesame.

To all whom, it may concern Beit known that L DAVID B. PLATT, ofJeffersonville, in the county -of Clark and State of Indiana, haveinvented certain-new and useful Improvements in OombinedGrain-DrillandCorn-Gnltivator; and I do hereby declare that the following is a full,clear, and exactn descriptiouvthereof, reference being had to theaccompanying drawing and to the letters of reference marked thereon,which form apart of 4this specication.

The nature of my invention consists in the construction and arrangementof a combined grain-drill md 'corn-cultivator,r as will be hereinafterfully set orth.

.'InA order to enable others skilled in the art to which my inventionappertains to make and usethe' same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing', in which-Figure 1 is a vertical cross-section, and

Figure 2, a plan view of my machine.

A represents the frame of my'machine, through which passes the axle B,having a wheel, O, at each end.

On'the top ofthe frame A, so as to be directly above and in rear of theaxle B, is placed amarrow platform, D, upon which reststhe seed orgrainbox E. o

Longitudinal-ly through this box passes the shaft G, upon which, at,suitable intervals, are placed the wheels H. These wheels are, aroundtheir periphery,

provided with cup-shapedrecesses, as shown in iig. 1.

The shaft G, with'its wheels, is revolved by means of a pinion, a,secured to or on the axle B, and gearing with a loose pinion oroog-wheel, b', on the shaft G.

A-'clutc-h, d, on said shaft is thrown .in and out of gear with-'saidpinion b by means that will -be presently described, so as to cause theshaft G to' revolve orjnot as may be desired.

On the opposite end o f the shaft G isanothcr cogl wheel or pinion,gearing with a similar one upon the journal of a bar, I, which passesthrough the box E, parallel with the shaft G, and revolving 'in oppositedirection from thatof the shaft, agitates the grain in the box so as tomake it fall. into the recesses on the wheels H.

On the inside of the .back of the box E, opposite each wheel H, isplaced a sliding plate, J, the lower end of which forms a saddle, e,above and ,in rear of the wheel, to prevent any more than the desiredquantity of grain to pass out through the opening at the lower rear edgeofthe box, each wheelh'aving an opening in the box for the grain in thecup-shaped recesses to fail out.

Each plate J' is slotted, as shown-in iig. Land held by bolt and n'ut.By moving said plate up or down by means of the cam f, pivoted above itsupper end, the quantity of grainfto be sowed with each revolution of thewheel is easily regulated.

The grain falling from the cup-shaped recesses in the wheel H andtheopening in the box E, passes down through ah'ole in the rear edge of theplatform D, andthrough conductor (l, to the shoe K and into the ground.y

The shoe K is firmly attached to a plate, h, the

front end of which is pivoted to'a beam, L, while the` rear' end of saidplate is enlarged and provided with several holes, through one of whicha woodenpiu, t',

is Apassed into or through the bea'm L, toholdlthe shoe at any angledesired, or," in other words, to reg- .ulate the depth at which theshovel-plow attachedto the shoe is to work.

. At the rear edge of the plate h, to the beam is'secured a smalleranged plate, j," which acts as a guideto the plate h.

Between earsl at the'lower cud on the front side 0i' the shoe4 K, ispivoted'an ear on the under side ofthe plow M, thus pivoting the sameetothe shoe.

The plow extends up alongthe front of the shoe,

as shown, and to another vear on its rear sideabove y the pivot-point,is attached a-bail, It, which passes around the shoe, and is drawntoward the rear by means of a spring, l, attached to the shoe at thenpper rear edge. This spring holds the plow in proper position againstthe front of the shoe, and, at the same time, will allow the plowtoyield if vit should strike any obstruction. But if any seriousobstruction is in the way, then the wooden pin i will break andv throwthe whole shoe backward, so that, under no circumstances, can any ofthese parts .be broken.

The beams Ii L are all pivoted on one rod under the frontend of theframe A, with suitable blocks andl washers between them to keepv themthe proper distance apart.v The rear ends of said beams are', by

chains, m m, connected with a roller, N, placed in suitable bearings'inrear of the boxl E.

On one end of this roller is a spoke-Wheel, O, by means of which theroller is turned or revolved to wind up the chains m m, and thus raisethe beams, with the shoes and plows, up from the; ground.

l vA- spring-catch, n, holds the wheel 0 inl any position it may beset,l so that the plows will-be held up from the ground wheneverdesi-red. f

On the left beam L is a bent rod, p, which passes upward and. toward theend of the .box E, where it passes through au eyelbr vloop formed on alever, r, which is pivoted at the'front edge of the box.

When the beams areraised up, as just described,

this lever is, by ineans of the rods p, drawn inward, which forces aspring, s, attached to the end of the box, .also inward. This springdraws with it the clutch d from the pinion b, and thus throws thegraindropping apparatus out of'gear.v W'hen the beams L are lowered thelever r is drawn outward, which releases the spring and allows it tothrow the clutch Having thus fully described my invention,

lfVhat 1 claim as new, and desire to secure by Letters Patent, is- Y 1..The sliding plates J, provided with tle saddles e, and adjusted by meansofthe cams j', substantially as and for the purposes herein .set forth.

2. The wheels H H, provided with cup-shaped recesses, and operating incombination with the saddles e e on the adjustable sliding plates J J,substantially as and for the purposes herein set forth.

3. The agitator I, constructed as shown and de- A scribed, and fQr'thepurposes herein set forth.

Intestimony that I claim the foregoing as ny own,

.l affix my signature in presence of two witnesses.

D. B. PLATT. Witnesses: l

JNopF. READ, J. E. HOWARD.

